* Elevate privileges for luks_device integration tests
Several tests in `key-management.yml` don't `become` before executing,
despite needing elevated privileges. This commit fixes that.
* Add passphrase support for luks_device
Previously, the luks_device module only worked with keyfiles. The
implication was that the key had to be written to disk before the module
could be used.
This commit implements support for opening, adding and removing
passphrases supplied as strings to the module.
Closes#52408
